cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A329528 Numbers k such that the k-th lucky number (A000959) is divisible by k.

Original entry on oeis.org

1, 7, 39, 41, 225, 6257, 33463, 33471, 182157, 182167, 1008899, 32487701
Offset: 1

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Author

Amiram Eldar, Nov 15 2019

Keywords

Comments

The corresponding lucky numbers, A000959(a(n)) are 1, 21, 195, 205, 1575, 68827, 435019, 435123, 2732355, 2732505, 17151283, 682241721, ...
The corresponding quotients A000959(a(n))/a(n) are 1, 3, 5, 5, 7, 11, 13, 13, 15, 15, 17, 21, ...
a(13) > 4*10^9, if it exists. - Giovanni Resta, May 10 2020

Examples

			7 is in the sequence since the 7th lucky number, 21 = 3 * 7 is divisible by 7.

Crossrefs

Cf. A000959.
Cf. also A329529.
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